Patent US2931095A successfully refreshed from Google Patents.
US2931095A
Expired / Lapsed
US
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Assembly apparatus
Assignee: Sheffield Corp
•
Filing: 1956-12-13
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Granted: 1960-04-05
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Expires: 1976-12-13
Abstract
No abstract record available.
Inventors
- 👤 Robert L Esken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:21
CPC Classifications
F; F16; F16C; F16C43/00; F16C43/04; F16C43/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/4968; Y10T29/53; Y10T29/53104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US608611A
Cited
US1723369A
Cited
US2068683A
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US2075050A
Cited
US2204655A
Cited
US2255626A
Cited
US2311251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |